Improvement in lamp-chimneys



J. F. BARTLETT.

- Lamp Chimney.

Patented May 25, 1869.

JOHN F. BARTLETT, OF WINSTED, CONNECTICUT.

Letters Patent No. 90.484, dated May 25,1869.

IMPROVEMENT LAMP-CHIMNEYS.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern Be it known that I, JOHN F. BARTLETT, ofWinsted, in the county, of Litchfield, and State of Connecticut, haveinvented a new and useful Improvement in Lamp- Ohimneys; and I do herebydeclare that the following is a full and exact description of the same,reference being bad to the accompanying drawings, and to the letters ofreference marked thereon.

' This invention relates to certain improvements in lamp-chimneys,whereby those portions not needed for p upper part of the frame-work B.

The latter consists of the upper rim B, the vertical rods b b b, and thebottom, B which is provided with the flange b, by which it is attachedto the lamp.

The parts before mentioned are constructed of metal, and are so locatedas not to obstruct the light from the burner at any point where it isusually required.

I Between the rods b is located the glass portion of tion,

the invention, which consists of the annular rings or' sections 0, whichmay vary in number, as desired.

The advantages of this construction are, that the part of the chimneywhich is not necessary for the transmission of light, and yetindispensable to perfect combustion, is of metal, and thereforecomparatively indestructible. The glass being in narrow sections, is notas liable to break bysudden changes of temperature.

The lamp can be more readily lighted, as it is only necessary to raisethe upper section andbring the match in contact with the wick. I

The top is easily removed, for. the purpose of cleaning, and thesections, when broken, can be replaced at a small expense.

I do not claim, broadly, the idea of constructing chimneys in sections,nor the manner of holding a chimney by means of a frame, for thesepoints I know to be old; but having thus fully described my inven- WhatI claim as new, and desire to secure by Let ters Patent, is-

The chimney above described, consisting substantially of the tubeA,frame-work B, and glass sections 0, substantially as described.

his specification signed and witnessed, this 25th day of March, 1869.

Witnesses: JOHN F. BARTLETT.

SAMUEL B. HORNE,

Enw'nv L. PALMER.

